Wicket spikes on EEG

Benign temporal variant · Benign variants

A train of arch-shaped waves at T7 in drowsiness, with nothing following each wave. Simulated trace, longitudinal bipolar channels. Open in the interactive viewer

What it looks like

Arciform 6–11 Hz waves over the mid-temporal region in drowsiness, in trains or singly, mostly in adults over 30. No after-going slow wave and no disruption of the background. ^3,11

What it means at the bedside

Among the commonest reasons for a wrong diagnosis of temporal lobe epilepsy. A single wicket that resembles the waves of the train it came from is a wicket.

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Sources

Kane N, et al. A revised glossary of terms most commonly used by clinical electroencephalographers and updated proposal for the report format of the EEG findings (IFCN, 2017). Clin Neurophysiol Pract 2017;2:170–185. doi.org/10.1016/j.cnp.2017.07.002
Britton JW, et al. Electroencephalography (EEG): An Introductory Text and Atlas of Normal and Abnormal Findings in Adults, Children, and Infants. American Epilepsy Society, 2016 (free, NCBI Bookshelf). www.ncbi.nlm.nih.gov/books/NBK390354/

Wicket spikes on EEG

What it looks like

What it means at the bedside

Sources

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